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390 Motor Mounts
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ksk1186 View Drop Down
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    Posted: Jul/05/2020 at 10:56am
Hello All,

Easy question about the motor mounts, and i cannot seem to find in the search.  What is the use of the rubber tabs on the stock replacements and do they face down towards the ground? 

Thanks! 

 
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SC397 View Drop Down
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Points: 5476 		Post Options Post Options   Thanks (2) Thanks(2)   Quote SC397 Quote  Post ReplyReply Direct Link To This Post Posted: Jul/05/2020 at 1:20pm
They face UP and away from the engine.  Those tabs are there so for a mechanical stop, or interlock,  if the rubber goes bad. 

Edited by SC397 - Jul/06/2020 at 8:23am
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ksk1186 View Drop Down
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Thanks!
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madams View Drop Down
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Points: 603 		Post Options Post Options   Thanks (0) Thanks(0)   Quote madams Quote  Post ReplyReply Direct Link To This Post Posted: Jul/05/2020 at 7:34pm
Just a novice here looking for help.  Looks like the parts manual shows them pointing UP?  Just eye-balling it, it doesn't look like it will affect the engine/cross-member alignment with it pointed up or down?  I bought the car as a non-runner and the metal overload bracket points up (I don't trust much of the work that the PO did).
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SC397 View Drop Down
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Points: 5476 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SC397 Quote  Post ReplyReply Direct Link To This Post Posted: Jul/06/2020 at 8:23am
Crap, my  mistake!  I will fix it.
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Points: 3806 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Steve_P Quote  Post ReplyReply Direct Link To This Post Posted: Jul/06/2020 at 9:11am
We discussed this years ago and Ken Parkman? had an opinion on which way they should face.
Per AMC, the intended purpose was to keep the fan from destroying the radiator in minor accidents.
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You've got me on this one.
 A "minor accident" and the fan destroying the radiator due to a motor mount tab that sits at least  1' back from the rad.
I'll need some more info to wrap my head around this please.
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SC397 View Drop Down
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Points: 5476 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SC397 Quote  Post ReplyReply Direct Link To This Post Posted: Jul/06/2020 at 11:01am
The tabs are a mechanical limiter to keep the engine from torquing itself out of the engine bay.
A little smarter idea than my brother's old ford had.  He ended up with a nice upward dent in his hood due to a rubber motor mount breaking during a hole shot with his '71 LTD.  LOL! The Old Man was not amused.  My Bro learned how to change a motor mount by himself that day.
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Thanks SC397, that makes sense.
I good have had a 66 Charger for $200 in 1972. All that was wrong was the hood dented because of a broken motor mount. If I only had the money!
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Points: 1814 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ken_Parkman Quote  Post ReplyReply Direct Link To This Post Posted: Jul/06/2020 at 12:38pm
BTW I have the dent in the hood, and the crushed header primary on the passenger side. Makes a helluva crash when the engine drops back down into place when you lift at the end of the track. Startles you big time.
 
At this point I've pulled apart engine mounts on the Hornet at the track, the stick street Rambler (that one bound on the steel scattershield and transmission tunnel and did not do any damage), and the 79 Cherokee rolling cars over in the wrecking yard using low range.
 
Yes the hook goes up!
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